Brake operating or similar mechanism



2 Sheets-Sheet 1 INVENTOR.

March 8, 1949, A. ORSCHELN BRAKE OPERATING OR SIMI ELAR MECHANISM Filed Aug. 25, 1947 \J a e km ham I QW March 8, 1949- A. ORSCHELN BRAKE OPERATING OR SIMILAR MECHANISM 2 Sheets-Sheet 2 Filed Aug. 25, 1947 innE-mmmsl V INVENTOR. 5567"? 07'sc% 6Z7?- Patented Mar. 8, 1949 UNITED STATES PATENT OFFICE BRAKE OPERATING OR MECHANISM Application August 25, 1947, Serial No. 770,519

Claims.

The invention relates to a vehicle brake operating or similar mechanism of the general type shown in my U. S. Patent 2,171,403 of August 29, 1939, and like my companion applications Serial No. 770,518 filed August 25, 1947, now abandoned, and Serial No. 770,520, filed August 25, 1947, it aims to provide a new and improved construction well adapted to motor vehicles of presentday designs, and one which may be expeditiously manufactured at reasonable cost.

Figure 1 of the accompanying drawings is a longitudinal sectional view, partly in elevation, showing the invention connected with a propeller shaft brake of an automobile.

Fig. 2 is a longitudinal sectional view partly in elevation, the hand lever being shown in its idle position.

Fig. 3 is a top plan View, the hand lever being shown in its operative position.

Fig. 4 is a longitudinal sectional View on line elevation, as indicated by line 99 of Fig. 8.

Preferences have been disclosed and will be rather specifically described, but variations may of course be made within the scope of the invention as claimed.

In the construction illustrated in Figs. 1 to 7, a horizontally elongated body I0 is provided to be mounted under the instrument cowling ll of an automobile, the front end of said body Ill being connected with a cable armor 12 containing a cable I3 which is connected with a conventional brake l4 on the vehicle propeller shaft IS. The cable 13 may of course be either a conventional steel cable or a single spring wire.

The body it] includes two unidirectional side plates [6 having opposed longitudinal slots I 1 near their rear ends. A block 18 is disposed between the front ends of the side plates I6 and is formed with an opening 19 receiving the cable armor l2, said block being also formed with a split 20 from said opening [9 to its lower edge. A bolt 2| extends through the side plates l6 and block 18 and spans the split 20, whereby tightening of said bolt will secure the side plates and block together and will contract the opening 19 to clamp the armor l2 to the body Ill.

The block 18 is formed with an integral up wardly projecting flange 22 which is spaced inwardly from and disposed in parallel relation with one of the side plates 16. The lower portion of a bracket plate 23 is received between this side plate and the flange 22, and bolts 24 extend through said plate portion, side plate and flange. The bracket plate 23 is instrumental in mounting the body H), as shown in Fig. 1.

A tie-bolt 25 extends through the rear ends of the side plates l6 and is instrumental in attaching another body-mounting bracket plate 26 to the body Ii). A central spacing sleeve 2! and two other sleeves 28 are mounted on the bolt 25, said sleeves 28 being spaced from the sleeve 21 and being disposed in contact with the side plates 16. Two hanger links 29 are hung from the bolt 25, between and in contact with the sleeves 21 and 28, the lower ends of said hanger links 29 being formed with openings 30 which are alined with other openings 3| in the side plates 16. Two axially spaced fulcrum pins 32 extend through the openings 30 and 3| and are suitably secured in place. In the present disclosure, I have shown cotter pins 33 extending through said pins 32 and through bosses 34 on the inner sides of the plates 1 6, to secure said pins 32 in place.

A hand lever 35 is provided having a rear tubular section 35, the front end of said lever being bifurcated and having its furcations 31 mounted upon the fulcrum pins 32. These furcations are formed with opposed longitudinal slots 38. An elongated slide 40 is slidable in the tubular lever section 36 and is provided with a bifurcated end 4! disposed between the slotted portions of the lever furcations 31. A pin 42 extends through the bifurcated slide end 4| and the slots 38 and connects one end of a longitudinal pull link 43 with the slide 40. The other end of this link is connected with a pin 44 slidably engaged with the slots 11 of the body side plates 16. This pin 44 connects a yoke 45 on the cable I3, with the link 43.

The slide 40 is tubular and is engaged by a screw 46 which extends into the lever section 35 from a knob 41, said screw being rotatably mounted in a bushing 48 welded or otherwise secured to the rear end of said lever section 36. Rotation of the knob 41 will adjust the slide 40 longitudinally, to compensate for wear of the brake. A spring-pressed ball or the like 49 (Fig. 4) and a coacting socket, are preferably used to hold the knob 48 in adjusted position.

The hand lever 35 normally hangs downwardly 'in the brake oil position as shown in Figs. 1

and 2. When this hand lever is swung rearwardly and upwardly to the operative or brake 3 on position of Fig. 4, the slide 4|}, link 43 and yoke 45 pull upon the cable l3 to apply the brake M. In reaching this operative position, the lever 35 swings slightly past dead-center, as seen in Fig. 4. The link 53 which is then between the inner ends of the fulcrum pins 32, abuts the central spacer 21, said link and spacer thereby limiting the past-dead-center movement of the lever. The off-center pull on the pin 62 will of course hold the lever 35 in its operative position, making other holding means unnecessary. When it is desired to release the brake, it is simply necessary to push downwardly upon this hand lever,

It will be noted that the hand lever andthe coacting elements are such that during a brake applying stroke of the lever it will initially have a low mechanical advantage and will produce a rapid take up of the cable and that during the remainder of the stroke the mechanical advantage will increase while the take up of the cable will decrease.

In Figs. 3 and 9, the body .llia is similar .to the body Ill above described, but is provided with a single fulcrum bolt 53 for the furcations 31a of the hand lever 35a, suitable spacing meansZ'la for the body side plates Ilia being mounted also on said bolt 50. The slide 48a is connected by substantially U-shaped links 43awith the yoke 45a of the cable lea. When the lever 35a occupies the operative position shown in the drawings, it is limited in its past-dead-center movement by striking of the links 630, against the spacing means 27a.

I From the foregoing, taken in connection with the accompanying drawings, it will be seen that novel and advantageous provision has been made for attaining the desired end, and whilepreferred features of construction have been disclosed,

attention is again invited to the possibility of making variations within the scope of the invention as claimed.

What is claimed is:

1. A brake operating or similar mechanism comprising an elongated body including two unidirectional side plates and spacing means holding them in fixed laterally spaced relation, said body having means whereby it may be fixed mounted,

a leverhaving a bifurcated end the furcations of which are fulcrumed to one end of said side plates respectively, said lever being swingable from an idle position in which it projects laterally from said body to an operative position in which it projects longitudinally from said body, a slide carried by said lever and having a portion disposed between said furcations, said lever having means for adjusting said slide longitudinally of said furcations, a work-performing member mounted between said side plates, and a pull link between said side plates and connecting said slide withsaid work-performingmember,

2. A structure as specified in claim 1; said lever being swingable slightly past dead-center to said operative position, and means for limiting the past-dead-center movement of said lever.

3. A brake operating. or similar mechanism comprising an elongated body, including two unidirectional side plates and spacing means holding them in fixedlaterally spaced relation, said body having means whereby it may be. fixedly mounted, a lever having a bifurcated end the furcations of which are ful-crumed to one end of said side plates respectively, said lever being swingable from an idle position in which it prov jects laterally from said bodyto an operative position in which it projects longitudinally from said body, said furcations having opposed longitudinal slots, a slide carried by said lever and having a portion disposed between. the slotted portions .of said furcations, said lever having means for adjusting said slide longitudinally of said furcations, a pin extending through said portion of said slide and having its ends slidably received in said slots, a work-performing member .mounted between said side plates, and a pull link between said side plates and connecting said 'pin with said Work-performing member.

' 4. A structure as specified in claim 3; said lever being swingable slightly past dead-center to said operative position, a portion of said spacing means being positioned to abut said link and limit the past-dead-center movement of said lever.

5. A brake Operating or similar mechanism comprising an elongated body including two unidirectional side plates and spacing means holding them in fixed lateral spaced relation,*said side plates having opposed longitudinal slots between their ends, said body having means whereby it may be fixedly mounted, a transversepin extending between said side plates and having its ends slidably received in said slotsya cable connected with said pin between said side plates and extending beyond one end of said'body, an armor surrounding said cable, clamping :means securing said armor to one end of said body, said clamping means being disposed between said side plates, a lever fulcrumed to said side platesat the other end of saidbody, said lever being swingablefrom an idle position in which it projects laterally from said body to an operative position in which it projects longitudinally from said body, .and a pull link connecting said lever with the aforesaid pin.

6. A structure as specified-in claim 5;:said lever being swingable slightly past dead-center to said operative position, and means for limiting the past-dead-center movement of said lever.

7.. In a brake operating or similar mechanism, a body including. laterally spaced side plates, a tie bolt extending through one end of said side plates and transversely spanning the spacexbetween said side plates, acentral spacer'on said tie bolt, two hanger links hung fromsaid tie :bolt at the ends of said central spacer, additional spacers on said tie bolt between said hanger links and said side plates, a lever having a bifurcated end the furcations of which extend between said side plates and said hanger links, said furcations, side plates and links having alinedopenings, two fulcrum pins extending through said openings and having their inner ends spaced apart, and work-performing means connected, with said lever and including a-pull link movable between said spaced inner ends of said fulcrum pins.

8. A structure as specifiedin claim '7; said lever being swingable past dead-center to an operative position, said pull link and central spacer being so related as to abut each other and limit "the past-dead-center movement of said lever.

9. A brake operating or :similar mechanism comprising an elongated body including 'twounidirectional side plates and spacing means holding thernin fixed laterally spaced relation-said body having .means whereby itmay be fixedly mounted,

said side plates having opposed longitudinalslots adjacent one end, a transverse pin extending between said side plates-and having its ends slidably received in said slots, a lever fulcrumed=to said side plates at said one end of .said body,

.said lever being swingable from an idleposition ,in which it projects laterally from,.sai d bodyito an operative position in which it projects longitudinally from said body, a pull link connecting said lever with said pin, a tuibular armor for a cable positioned between said plates at the other end of said body and extending beyond said other end, a cable in said armor and connected to said pin, and means between said plates for holding the portion of the armor between said plates in line with said pin and its guiding slots in said plates, whereby when said lever is moved to its operative position it will produce a straight line movement of the cable as it leaves said armor.

10. A brake operating or similar mechanism comprising an elongated body including two unidirectional side plates, and spacing means holding them in fixed laterally spaced relation, said body having means whereby it may be fixedly mounted, said side plates having at one end of said body opposed longitudinal slots, a transverse pin extending between said side plates and having its ends slidably received in said slots, a cable connected with said pin between said side plates and extending beyond said other end of said body, means between said plates for guiding said cable, a lever fulcrumed at one of its ends to said side plates at said one end of the body, said lever being swingable from an idle position in which it projects laterally from said body to an operative position in which it projects longitudinally from said body and a pull link between said side plates and having one of its ends connected to said pin and its other end connected to an intermediate portion of said lever, whereby during an operating stroke of said lever it will initially have a low mechanical advantage and will produce a rapid take up of the cable and during the remainder of the stroke the mechanical advantage will increase while the take up of the cable will decrease.

ALBERT ORSC'HELN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,171,403 Orscheln Aug. 29, 1939 2,177,456 Irving Oct. 24, 1939 2,398,568 Turtle et al Apr. 16, 1946 FOREIGN PATENTS Number Country Date 681,676 Germany Sept. 20, 1939 

